Minicon 26
Minicon 26 was held 29-31 March 1991.
(The WWW had been invented by Minicon 26, but no web servers were live on the public Internet yet, so we're sure it didn't have a web site.)
Program book
Here is the program book in PDF (95 MB), or the same, but lower quality and a much smaller download (4 MB).
And here are individual page images used to generate each of the above PDFs:
The Minicon 26 Program Book was published with the copyright statement, "Copyright © by Minnesota Science Fiction Society. MN-STF is a trademark of Minnesota Science Fiction Society. All rights reserved under various and sundry agreements and conventions. Published in Minnesota by Graphic Impressions. No maps, illustrations, or other portions of this book may be reproduced in any form with guilt feelings (except where expressly copyrighted, which require permission of the artist/writer)."
The earlier stuff notwithstanding, that last bit seems to be a declaration of putting the book into the public domain. Let it be so. The expressly copyrighted things are covered here:
A few parts of the Minicon 26 Program Book by
Fred A Levy Haskell (photo),
Jeff Schalles (text), and
Stu Shiffman (art) are licensed under the
Creative
Commons Attribution-Noncommercial-Share Alike 3.0 United States
License.
Advertisements are copyrighted if so marked.
SEMGS
Here is a piece, mirrored from Gabe Helou, describing some public discussion after Minicon 25 (and hence related to planning Minicon 26).